what size cam?

[scooba1324]

i have a 1987 cutlass 442 with 8.5 3.73 rear end th400 trans with shift kit stock stall sbc 350 60 over 400 heads i think there 64 cc stock springs what the biggest cam i can use with out changing my stall and springs on my heads

 

[cutty]

what springs are in there now?

 

[scooba1324]

stock spring as far as i know my buddy was telling me to go with 510 lift but that seams way to big

 

[cutty]

i think not 100% sure that stock springs are good till 480 lift,

 

[SLICK79WGN]

another problem is the studs pulling out with a big cam on stock heads with out screw in studs I had it happen to me with only 460 lift

 

[hp3445]

If it is a track car... go big... if it's for street use.. you will lose vaccum with a really big cam.. and you will be disappointed in the power curve..everything has to match... call Comp cams with your vehicle specs and they will get you the correct cam you are looking for.. but be prepared to answer alot of questions.. GVW, trans, stall, rear, head size, stroke, carb size, intake manifold, is it fuel injected, power adders...ect...
it all adds up for the perfect combo.. alot of guys at the track or on boards will not give too many details about their cams... because that is the one of the Top Secret things in the car.. unless it is off the shelf.. I have a Mustang with a 331 stroker and S/C and a custom cam.. that is the secret... the cam... I am building a 454 BBC with an 8-71 on top for the Regal... That cam for sure will be a secret..I'm not trying to be an *ss.. It's the nature of racing... Back in the day everyone wanted to know what kind of cams we were running.. we always said a custom grind and never give specifics.. I don't know the specs or lift? I lost the cam card.. lol

Good Luck!!