Well let's kick this thread up to the top again and see if any other Model-A builders answer. I do not have a radiator yet but I have installed a short water pump with a single-groove pulley setup and a 19" flex fan. I added 1.6 ratio roller tipped rockers to my 350 because the lift is greater AND the roller tips are supposed to make the engine run cooler since the regular rocker arms really rub hard against the valve tips and cause a lot of heat; some people say the oil is 20 degrees cooler with roller tip rockers. In addition I am toying with using a deuce shell BECAUSE there is room behind the (very expensive) grill for a blow-through fan from the front of the radiator if the flex fan does not cool enough. I would be interested to know where the back edge of your radiator is relative to the center of the radiator mounting holes. As I said in a previous thread the distance from the center of the radiator hole to the center of the motor mount bolt is 13 1/2" on my Brookville frame. So far there seems to be plenty of clearance with the front crossmember and U-bolts for a two-groove pully setup if I want to use it (I have the pully set). I just bought a HEI distributor from Summit and the tech guy at Bebops said their '29 roadster firewall would handle it, but just in case can you tell me about a small cap version of the HEI distributor?

Don Shillady
Retired Scientist/teen rodder