B or RB in A body

Hey Rusty, are you referring to the 78030 Hedman header at Summit? They are the same shape as the Summit brand, which are only $183. Only difference is in the flange thickness at 1/4", Hedmans are 5/16". Also wondering if you think the Hooker Super Competition headers would fit, as I have a set of those. THANKS
Reviews (Summit) were not so good on those...I've wondered what headers would be best fit for my '68 383 Barracuda w/power steering..have not heard of any yet anyway..