need some help with a plan
1/8 mile track>> Street class>> 8.50 dial-in
parts list

89 engine
727 trans
4.10 Dana with a spool,
31 x 13-15 tire
35 spline axles
also 92 engine, turbo and OD trans

have pyro, boost gauges

will be porting the exhaust ports and match porting the manifold



what to do ?

4000 GSK
60 or 110 springs
converter>> stock, add anti-ballooning plates or ?

would I keep the 4.10 or still go to a 3.54 ( next gear I have)
also have a 4.56 gear laying around

If i use the OD Trans
what about wiring in a pressure switch
in the governor port
example>> 52psi= 52mph
to turn on OD

will it hurt the trans to shift into OD, under load?

Thanks