Dixiecup needed some more power a 1.4 is a sad little thing runs well for what it is , so what to do? I bought an intake and a new Holly with mechanical secondaries and had the intake converted to a COLD intake I just got it back a nice winter thing to do as for the heater i brazed a 3/4 inch tap on the lower water line by way of a copper union. I painted it black now to put it all together . Dan OK sorry for the misunderstanding the HOLLY is a progressive 2 bbl