camshaft question?

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dovercrossing

Go Mountaineers
Joined
Mar 26, 2011
Messages
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Location
Salem, WV
Over the years I have amassed a lot of parts to build my 1974 225 /6.
.30 over pistons, oversize valves, Mallory/ MSD ignition, Comp Cam and springs my question is did I select too much cam
Gross valve lift.440 int. .440 exhaust
tappet lift @.20 264 int & exhaust
Valve timing @ .20 int. 24btdc 60 abdc
exh. 60 bbdc 24 atdc
duration @ .050 int. 220 exh. 220
lobe lift 2933 int.& exh.
lobe sep. 110
I want a slightly radical streetable car with an automatic transmission
was the cam a good choice or not and will it require a different converter. if so what would be a good converter choice. the car will also be equipted with a Clifford intake and headers with a 500 Edelbrock. I also plan to have 90 thousanths shaved off the head
 
Slants tend to like more intake duration than exhaust. About 8-12 is typical. That is a REALLY mild cam. You will want to MEASURE your head and block .90 is not that much (remember you will loose .020 just using a composite head gasket and in 74 the actual compression ratio was around 7.4 - 8.4 to 1. Target 9 to 1 for pump gas. I like the Erson 280/270 RDP cam.
Frank
 
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