Quote:
Originally Posted by Cliff R
I'm using a factory "stock" HEI distributor with the only modification to it the addition of a POSITIVE STOP to limit the advance and a bronze gear for the roller cam. It has stock center cam, stock weights, and stock springs. I did "open" up the spring eyes slightly to start the curve a tad sooner and get it all in a little earlier without adding any timing at idle speed (750rpms).
I ended up going back to my tried and true factory "990" module after running several different aftermarket modules a few times and even once tried an Accel coil with zero improvement anyplace.
The module is around 45 years old and on the dyno it made a couple more HP and a little cleaner torque curve than an MSD billet distributor with a 6AL box on it. How does that happen? Just take a look at how "fine" the pointers are on the pick-up assembly and precisely machined compared to the MSD's "thick" parts and rusted all to chit since they don't (or didn't used to) effectively zinc plate those parts........and you will have your answer.......
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Ok I guessed wrong. Lol
Good to read the cap clears the firewall with a HEI distributor. Looks like I will be hunting down a distributor for a rebuild and to send out to be recurved. Thanks