help pick a cam

[racingjoe67]

I know this is bench racing, but I love it.
the 340 is over .030 . so, its a 345 now.
cast crank, forged rods with the works,10to 1 J&E flats with silvolite rings,
clevite bearings, hv oil pump.
the motor has 360 heads with 1.88 intake valves, 1.60 exhaust, I have the 273 adjustable rockers and bad asz pushrods . the cam is .480 on both and 236 dur.@ 50. I bought an LD340 intake. also have mp elec. dist. and chrome ecu.
#1 what size carb ??
#2 what kinda cam will go well for street and some 1/8 th mile draggin?
im planning on adding eddy heads, and was told not any biger than .530 lift. I want to be able to run pump gas without a pain in my a*$#@%. all advice is welcome.
thanx, joe

 

[dodgetkboy78]

You have the cam already.

 

[rumblefish360]

Street strip? 750 Holley. Edelbrock's have a small problem with big cams. Strip only? Double pumper. Same size/brand.
Cam with 360 heads? Since it is bench racing, the cam you have listed above is very good.

IDK, who told you stay under a certain lift with the Edelbrock heads, but crack is what they smoke. Choose a cam's duration based on the RPM band your working within and lift within the springs lift handling ability. Unless you use the cam manufacturer's springs.

Generally speaking, unless your building a seriously heavy breather of an engine, do not exceed lift past the heads max flowing valve lift.

A cam is e can be picked when all the facts are in. You have listed little.
Gear ratio
Tire size
Cars weight
Exact intended purpose
Etc...

 

[1wild&crazyguy]

at 10.1 comp and those heads, i would pick a cam in the 240's@ .050 dur, no more than a 112 cl, 110 would be good all around.

as for the lift restriction someone told u, NO...But i dont see much gain after about .550 lift and i would just increase the duration if i needed more air but didnt want to change heads or port. jmo

 

[RustyRatRod]

You gotta ok cam. Could be better. Lose the HV oil pump. It'll cost you HP, and unless you run a hardened oil pump drive shaft, the stock one might even break. That could suck. Bad.

 

[bbrroowwnn]

eddy heads, eddy 7576 performer air gap , and holley 750 will get you over 400 HP...probably even with the cam you have in it....

 

[dodgetkboy78]

Lose the HV oil pump. It'll cost you HP, and unless you run a hardened oil pump drive shaft, the stock one might even break.

Really, I mean......... Thousands of Mopars out there have hi vol pumps..... all of my engines do....... Never sheared a shaft, and the one HP is takes away probably isn't going to make a difference.