It really depends on the setup. You might see some decrease in efficency without a vac advance, but if you wanted efficency, you'd drive a Honda, right?

Mallory now makes a few points and electronic dists that will fit the 235. Another option is to find a stock dist in good shape, and give it a recurve and a Petronix retrofit kit.

My advice is to stay away from the modded V6 'mini' HEI that Langdon's sells, as one I installed in my 235 contributed to an engine failure.

chip

Preaching the Hot Rod Gospel according to the 4-stroke apostles:

Suck, Squish, Fire and Fumes