so the best combo for what we are up to is a sss with 81-83 z28 pistons with a dish? if i did my research right there are two diffrent pistons one flat and one dished. go water injected (with what size jet?)and most of all get rid of the intercooler.what carb setup would be best? you have to remember we are dealing with steep hills and rough conditions so it has to fairly easy to tune for such thanks for all the replies again

ok chris we get rid of the intercooler no problem. now what piston head combo now?

no chance of a dyno but could install once running a o/2 sensor and meter ratio as well but was wanting to get running first with aleast the right parts and yes these engines get get beat up severely they are thru the rpm range probably more than any other driving that why i'm asking for help with this matter

its a draw thru and i have heard of sneazining sould we get rid of intercooler and just go to a holley or posible injection as in pro injection?also water/alky injection would that help as well?I personally have a 2300 cc air cooled vw with t-4, gm injection with 52 lbs injectors with intercooler water/alky inject 8-1 comp with no problems with 20 psi boost

thanks again for the replies more info
cam shaft is set at zero deg witch is no ! mark on aftermarket gear the timming of dist is 24 at full boost is that to much?do you think the carb is enoughfor such a motor?just tell me what pistons, head gasket combo and carb (year make & mode) and we'll go that way. we dont want to go back to carb only we want H.P.!but dependable H.P.what timming? all answers are appr.I know everybody has their own opinion but i will take what looks the most correct to my knowledge help we want to go off roading soon

hello I'm deans brother thanks for all the replies.hear is the info we are working with;
bore 86.5 already over1.5mm or.060
stroke 86
head 36 cc's this a SSS head from nissan
deck hgt .018
stk gasket is 1.5mm
dish piston .120 deep 2.710 dia
CR looking for is 7.5-1\8.0-1
15 psi boost with intercooler max adv of timming of 24 deg.cam is 112 * special turbo grind
this melted the edge of the pistons within a short time no other damage was done fuel sytem is a weber progesive 36\42 with 100 octane fuel holley blue fuel pump with
if you more info contact me please we are eager to get this running correct thanks doug