Looking for input with a 342 blown setup

[snakesonastang]

I'm running a 342, afr 185's, forged internal, and I just purchased a powerdyne supercharger. The supercharger is at 928 motorsports getting the full rebuild. I'm running 10.5-1 compression, and plan of running 9 psi with a water/meth injection. Does anyone have experience running boost at this compression level? If so what kind of numbers are you running? Any problems with this kind of setup that you experienced that I can avoid? Thanks for any input.

 

[LAFENATU]

I'm running a 342, afr 185's, forged internal, and I just purchased a powerdyne supercharger. The supercharger is at 928 motorsports getting the full rebuild. I'm running 10.5-1 compression, and plan of running 9 psi with a water/meth injection. Does anyone have experience running boost at this compression level? If so what kind of numbers are you running? Any problems with this kind of setup that you experienced that I can avoid? Thanks for any input.

Run a very conservative tune. 10.5:1 is a lot of compression for boost, meth injection or not - let alone a stock block.

 

[MikeF]

i have a stock shortblock only thing i did was put forged pistons arp bolts new rings and bearings trw cheap forged pistons flattop with tfs tw head and stage 3 cam with r intake with a v1 pushing 10# i use a btm set on 1 with 2 steps colder plug pulls like a freight trane make shure you have good clutch i put king cobra with 4-10 gears good luck dont go over ten degrees base timing(spount out on 5.0