There is not alot of power to be found with porting a 421? Ive heard it all now.
Facts:
The statement above is wrong.
That cylinder will be average against the competition.
You will be fast compared to your neighbors 450
Dont dyno it, you wont be happy.
There is alot more in that cylinder.
loco sticks up for sponsors because they are sponsors.(paying him). Would you say anything negative if someone was paying you and dick riding?
I have 2 HJR drag ported cubs to attest to these facts.