Mike I planned to go with a 350tpi as well. I just couldn't find one in the yards that was not tons of miles or beat to shreads. I bought the 305 because it was cheap, $1250 complete, and low miles, 68K. The differance in power for '91 model year is 230hp/300tq for the 305, and 240hp/345tq for the 350. BTW, mine had an auto behind it, I changed it to the t5. Very little wiring to change.