Hey Jordan
Typically the alum heads will absorb a lot more heat so the usual # is 1 point higher compression , this engine is on the ragged edge at 10.6 :1 compression & 3600 feet of altitude .
So I would recommend building it around 11.25:1 with Alum heads , a flat top piston with a closed chamber is far better for power , this brings in the problem with most alum heads that the chambers are too big to get the compression you want , this is why I liked the Bulldog heads as they were 76cc & were fully lower lower in chamber size to create exactly the extra point of compression to compensate for the heat loss .
The cam choice is not affected by Alum heads & I will help you carefully design a cam to match the power band you want , the 512 build here is totally streetable , idles well in traffic , no stalling & rough idle problems with the cam in that engine , it is also designed with a slightly lower powerband so it will run on the highway at 2200 rpm , you can run higher if you are not using OD to drop rpm on the highway .
The big limitation I see is the Stealth heads are relatively small & will limit power above 5500 RPM , I would rather use the Indy EZ Max wedge ports & possibly the big Indy dual plane intake to fit under hood & use at least the Proform 950 race carb with this combo , possibly the bigger 1050 if you want more power at higher RPM If you have the $$ to allow for the upgrade .
Topic: '67 Coronet R/T 512 Stroker Mustang Dyno Results (Read 17039 times)
