Your son has too much pearl - getting more makes no sense IMO.  The key to a good tournament arsenal is varying ball motions.  A Nano Pearl, Fire Road, and Fringe arsenal are basically 3 polished pearl balls designed for slightly different oil volumes.

He needs a benchmark ball - especially if he is bowling WTBA patterns.  I'd strongly suggest an IQ Tour - not the IQ Tour Pearl.  An IQ Tour is a good first out of the box ball for what you described from your son.  Then he can change to the Nano Pearl or a Fringe as the shot changes.

I agree with greenefam's assessment, your son's arsenal is a bit one dimensional. He for sure needs a solid reactive in there. Another thing to keep in mind though is to not give him too many options. He is on the right track bowling JBTs, but if he is 180 on a house he has a long way to go. I think the best thing would be setting him up a solid 4 ball arsenal considering the following categories:

Fresh (medium-heavy volume and medium-long length)
Middle transition (games 2-4, patterns medium volume and length)
Late transition (games 5-6, patterns light volume and short length)
Spare Ball

So taking the above categories into consideration his arsenal doesn't meet a few of the categories effectively.The Nano Pearl could be a Fresh ball, but would probably need more surface. The Fire Road and Frantic both would handle the Middle-Transition, but I think an IQ Tour would be a better fit. Then maybe adjust the surface of the Frantic for the Late-Transition to give him an option there. Seeing that you mention a displeasure in the Fire Road, that might be one to put away for a while until he grows a little more. Just a few thoughts, hope that helps!

I agree with most of what's been said by the other posters. 

As a lefty without much hand, my current arsenal includes these Storm balls:

VG Nano - heavy oil
IQ Tour - medium: smooth ball drilled to be tame on the backend
Frantic - medium: drilled to be aggressive on the backend
Fire Road - medium/light

Like your son, I don't like my Fire Road much except on lighter conditions.  The RG of the ball is much higher than the other Storm balls in my arsenal.  I'm thinking that could be a major reason why he doesn't like it.

I would take a look at this link:

http://bowlingknowledge.info/images/stories/slowinskiaug11.pdf

It doesn't give any specific ball recommendations but I think this is one of the best write-ups I've ever found that goes indepth into building an effective tournament arsenal.

Good luck!

+1.  With your son bowling in a lot of tournaments, he should have a couple of pearls, 1-2 hybrids, and maybe 1-2 solids.  The key is having a well rounded arsenal so he can battle the widest variety of lane conditions possible. 

Here are some ideas on what I think could potentially work for your son:
Nano Pearl (heavy oil, pearl)
*IQ Tour (medium-heavy, solid)
*Hy-Road (medium-heavy hybrid)
*Manic (medium, solid)
Fire Road (medium, pearl)
Fringe (medium-light, pearl)

The IQ Tour Edition and Hy-Road are the best options for benchmark balls.  Both are very smooth overall and will give a 1-2 punch on medium to medium-heavy oil.  If you go this route, I would suggest the IQ Tour being first out, then going down to the Hy-Road when he needs a little more angle on the back.

While I agree with everyone about "too many pearls", I disagree with the IQ or a stronger solid.

Did everyone miss the "lower ball speed", as well as "lower rev rate"?
He may need pearls or at least polished balls to get balls through the heads with some reserved energy. Besides the Nano Pearl handles a lot of oil out of the box. Many people have complained it had no hook or backend because they used it on too little oil. It's also why Storm developed the Lucid with no "Nano" particles.

So if he were to get a solid, it probably should have either a lightly polished surface or 4000 grit, depending on whether or not he can get down lane with enough energy to hit.

Hey "dad",
Does you son ever encounter so much oil he cannot use the Nano pearl well?
If not, that sort of validates what I said above.
If so, then he does need a stronger, earlier reacting solid.
Otherwise something like a Hy-Road or a Manic or the Tropical Heat Hybrid 4000 may be a good choice.

OK, so I hear you, but no one suggested the IQ as far as I can tell - we were all leaning down the IQ Tour path which comes 4000 abralon and is a medium oil ball - maybe medium heavy.  A Hy-road would also be a reasonable choice as well.  My original point was more of a tournament ball arsenal needs to include a variety of roll shapes and with a starting point of a Nano Pearl and a Fringe something that reads the midlane more would be my recommendation.

For slower speed / lower rev. bowlers having a huge disparity in balls is actually more important than for all other bowler types because heavier / longer oil and shorter / lower volume oil effects these bowlers more dramatically than the rest of us.  Longer oil can make these bowlers get lots of deflection and lower volume creates early roll out.

If you could build this arsenal from scratch I'd probably get 1 heavy oil roller like a Vivid, 1 benchmark ball like a Hy-road or IQ Tour, and sprinkle in 2 pearls like a Marvel Pearl on the high end and I actually like the Roto Scream for the low end pearl.  However, given the starting point of 3 pearls the first thing I'd go get is a benchmark ball.  In that list I'd go IQ Tour, Hy-Road, and Manic in the current line up.

I guess the other thing we have all ignored is you probably should have a coach work on speed.  For a 14 year old I'd find ways to get his legs to generate ball speed without trying to rely on arm strength.  Most of the youth boys I've coached over the years love to create revs. but they have a tenancy not to rely on the natural strength of their legs.

Fair enough Charles, I guess I pontificated a bit beyond the request.

If you have 3 pearl balls and are looking to add 1 you should get a solid or maybe hybrid ball.  Look at IQ Tour, Hy-Road, or a Manic as any of these 3 would be a good benchmark ball.

My thoughts are you would want to factor in bowlers stats. to get the right match up on different lane conditions. 

I'd be looking at a IQ Tour solid R2S reactive 15 lb. 2.49 .029 as the benchmark middle of the road ball and tweak the layout to match up for a low Rg control ball pin down probably depending on bowlers stats./PAP.  R2S Solid being a strong cover but the lower Rg and control layout would allow young players to square up more and read the lane condition better. 

Hopefully the young player doesn't have all pin up strong layouts which you see normally on most house pattern bowlers arsenals.  If he doesn't have a pin down control layout to match up to his PAP that's something to look at along with a solid cover control ball. 

Just the way I look at it. 

blesseddad hopefully you have a good pro shop operator/driller to work with to get your son's bowling stats. and know's how to layout equipment to conditions and the equipment compliments each ball to the next.

Read how Storm staffer Jeff Richgels laid out a IQ Tour for benchmark pin down.  http://11thframe.com/page/reviews_id_6