I have a 1973 360 with a 727 tranny. the block has been bored .30 heads have been redone to alittle better than stock specs has an rv cam in it now for tq ( what do you guys think?) has a duel plane edlebrock intake and a holley 750 and tti headers trying to make a fun street car going in my 1975 plymouth scamp wanting about 350 to 380 hp and 400 to 425 tq am i gunna get there with this set up?

i am 19 and my first engine build, i am a poor college student so nothing to crazy i dont have deep pockets

 

scamp -

Street, strip or both?

I think you better have a pretty good sized cam in there to be comfortably with a 750 cfm for street use. (Sorry, no idea about the rv cam you have.)

You didn't mention exhaust specs (diameters), torque converter stall or rear end gearing.

Most of the other stuff sounds fine, and the engine will, just might not be as efficient or drivable as it could be.

Archer

 

what size cam do you think than? i am only gunna be driving it on the street amd to local car shows just want to have fun. it will have 2.5 inch tti exhaust its a stock tranny with a shift kit and rear end 8 3/4 3:23 gears

 

scamp -

With a stock converter, if you build enough HP/TQ (big enough cam along with the other stuff you have), you might be fighting the brake at traffic lights and stop signs. (Stock converter are about 12-1500 rpm, IIRC.)

Been a while since I built a small block, but a lot of the other guys here should be able to give to numbers on the lift/duration of the cam. You might want to check what your specs are and figure out the power band.

The theory is that you want every thing to match the power band as determined by the cam.

Archer

 

i want it to be a low end fast out of the hole not to worrid about the high end i really want it to jump out of the hole.

 

haha you and me both mine is going on 3 yr project now and im almost out of college.

 

Nothing wrong with your motor for a cruiser /3.23 gears. If Your lucky you may have 275-300 HP The pre magnum LA 360/360 crate motor has a 284/484 lift cam, bigger valves and more compression I hope the 750 is a vacuum secondary. Might consider a 3.55 gear or even a 3.91

 

it is a vacum secondary what can i do to make alittle more power for not alot of money? new cam would that help? shave my heads? some help

 

Cam and heads are the biggest factors in power production. Since a tight budget probably won't allow a new set of heads, upgrading your cam will be your best bet.

 

what kind of cam you think would work best

 

With your limited budget something in the 272-274 range. Be aware the break in of a new cam is critical. The cam mfg will gladly make recommendations for you. You will never get what you want without spending $$$$$.

 

ya i wanna dump money into the motor but need to take baby steps poor college student i think i am gunna start with what i got and go from there i wanna do somthing with my heads but i heard its better just to buy aluminum heads what do you think

 

I'm a little late to this thread, but if you are still following it here's my 2 cents.

My Duster's first build was similar to your car. I had 2.02 valves installed and that made the big diff. However with a moderate Crower street cam (don't remember the specs; no lope at idle) and 3.23 gears it was a dog at launch, but would wake up and ran very well.

Considering your money and stock heads you'll get much more bang for your buck with low gears. I would suggest as low as you can stand. I put 3.91's in mine and it woke it right up on launch. A big cam will kill it without gears and a stall converter.

 

I agree with just about eveything said here. The one thing restricting you from reaching your goal, regardless of what camshaft is used, are your cylinder heads.

I would suggest looking at some sites with crate engines and see what components they are using to reach certain power levels. I ran your combination on Camquest 6 and with a reasonable cam it comes up around 300hp 350tq.