I wanted to start this so I can show Mopar what a mistake they are making. They think nobody likes pro stock. I know that is not true. I see so many Mopar pro stock fans at every race thanking me for sticking with it. So I will answer any questions you got on the engine,trans, clutch & setup.

I will try and answer any questions as quickly as possible.

Could you post as many revealing engine pictures that wouldn't give up too many secrets?

Most of us here don't get to see much from that level of racing.

Alan, can you give us some details on cam and valve train? As a WAG i would assume rocker ratios are very high, (1.9? 2.0?) lift is 1.1 plus, duration is somewhat shorter than we think?

Welcome!! By the way!

pictures probably not but any questions you have I will do my best to answer.

pictures probably not but any questions you have I will do my best to answer. my rockers that I have run the best are 1.85 I'm working on some 1.925 and 1.95 lobes it does look promising but nothing that I'm ready to race with. 278 intake seems to be the best right now for me.

Whats the bore and stroke of a typical pro stock engine?

Do you have a minimum bob weight you need to have?

Thanks for joining the forum!

Alan, if NHRA allowed carbs or fuel injection would you go back to carbs?

Thanks, Justin

Alan,

Thanks for taking the time to post.

I am guessing rear end gears are changed often depending on weather and track conditions but what would be a typical range of rear gear ratios?

Very much different for Denver?

Thanks,
Bill

most of the time we run a 5.43. this week in Vegas a 5.50. in mine shaft air a 5.38. trans gear we change more often.

fuel injection I like the tuning part of it.

my bore is 4.733 and my stroke is 3.55. I would like to try a 4.75 bore combo but my budget just isn't going let me.i think alot of teams run 4.75 bore motors.

Nice of you to post here Alan! We pushed hard on the voting for you! Good luck and thank you for carrying on the Mopar banner! We will be pulling for ya!

I run steel rods so we aren't close to the min. Bob wt rule.

Alan,
Thanks for posting and answering questions.
Good Luck

Thanks for the info Alan - good stuff!

I hope you do well and keep up the good fight!

What kind of stall speed do you look for on a good or bad track

I hear guys talk about the maintenance requirements for a good Top Sportsman combination. Can you gives us some insight on the maintenance routine at the PS level? Number of runs on a freshen, disassembly for inspection, piston/rod replacement, valve springs, etc?

Do you have one or two race day engines that are in a constant state of R&D or mule motors to do R&D on with that info being incorporated in the good engines?

Do you do your own chassis tuning or do you have "people"? Is there constant tweaking according to the track, gear ratios, etc., or is it once it's sorted, it's just a matter of shock adjustments, clutch adjustments, etc.?

we run a 5 speed liberty so stall speed isn't something we are not concern with.