I am building a 383 stroker... I have the kit .... Its going in a 4 bolt man block .. Now here is the question ....

I have a set of 1.94/1.50 open chamber 75CC heads for it ....

Will they work ok?? Still produce good hp ?? Or should I try and find a set of closed chamber heads?? Does it make much of a difference ??

thanx

J