[cobraduke]

Ed,
What headers and exhaust support those numbers? I have a built 302 that should easily make 300 at the wheels and only does 207. It runs great, but I'm certain the headers are choking it. They had cracked and when removing them I was amazed how restrictive they are. I'm pretty sure they are identical to the factory CRII 302/351 headers with a small 4 bolt flange and less than 2 inch merged exit. I'm looking for something better that will fit even if I have to fab the connection. I don't want to ruin my depends because they have to last at least a week, but it's a shame to have such nice parts and get so little results.

I know about the restrictive side pipes and will address those as well, but that won't matter much with so little cross section at the header flange. If this is too off topic, PM me.


Thanks,
Mike