I bought a new set of Fentons in 1954, the came with a cast plate to bolt on the bottom of the intake and had two curved tubes and all fittings to connect to both headers (front and rear) for a heat source for the intake manifold. SIt worked great, the car held national m.p.h. and e.t. records in 1954 NHRA at Pomona, Ca. Only beat once by a cheater named Bruce Morgan.