I am a beginner with the 235's however I can not comment on the 38's however I did purchase Tom's setup. The thing for me was I took in his experience and after talking with I was convienced it was the proper setup. I know he is trying to sell his setup but through a few conversations about different stuff he just made a lot of sense. My application seems similar to yours. I guess I will find out soon. I am running a 1956 w/ fenton intake and exhaust, dual progressive 2bbl. carter webber with a stock 261 cam, mini HEI and a t-5 tranny which Tom talked me into. I guess my point is I am going on trust because the research I did. To each is their own but so far I am happy with what I got. Good luck

"As I lay rubber down the street, I pray for traction I can keep, but if I spin and begin to slide, please dear God protect my sweet ride." -Amen

56 Chevy 3100