Cam and torque convertor suggestions

[71monacomoparmechanic]

71 monaco with remanned 383. Rebuilt 727 trans. Has 3.55 rear end gears in 8.75 sure grip. Msd mechanical advance distributor and ignition module. 2.5 dual exhaust with flownmaster mufflers. 1978 "high performance" 400 exhaust manifolds
Edelbrock performer rpm intake manifold. Have 2 Carburators one holly 4150 650 cfm mechanical secondary and an edelbrock performer 750 cfm mechanical secondary

 

[stubs300]

So what's your question? What's the intended use?

 

[71monacomoparmechanic]

Currently running the holly

 

[71monacomoparmechanic]

Limited street use. Produce as much power as possible with that engine without too much internal and head work. Probably will put a 440 in it later on but want to get some use out of the current motor and have it run better.

 

[Davea Lux]

Limited street use. Produce as much power as possible with that engine without too much internal and head work. Probably will put a 440 in it later on but want to get some use out of the current motor and have it run better.

First off, this is a 8.5-1 compression ratio engine, which for performance purposes is on the sedate side. You have already done the exhaust, ignition and high performance intake. On this engine, I would probably go with a '67 high performance stock camshaft and a set of higher tension valve springs I think that would give you the most bang for the buck. You would not need a higher speed stall convertor with that setup. Save your money for the 440 build later on. The 650cfm Holley should be adequate for the 383 setup and will still leave good low end torque when you hit the throttle.

Dave

 

[CBODY67]

Just to clarify, the cam would be the 440/375 cam with the "double3 spring" valve springs (outer spring with inner damper). Should be the same thing as the '68 Road Runner 383 had in it, but not the normal 383/325 engine items.

CBODY67