Hey everyone. First time poster long time reader. I'm doing a '81 c10 engine. I'm tossing the old 305 for a 350. I have a list of parts and info. Just wanted a reality check before I begin bolting it all together. So the basics. C10 long box 1500 miles yearly occasionally towing. Current gears are 2.73 open rear end changing to 3.73 after successful engine swap. 1986 350 block no over bore#906 vortex heads milled. 010 stock. Some porting and polish. Dished pistons 12cc Using. 015 head gasket achieving. 040 quench height and 9.6 compression. .467 cam intake and exhaust 112lobe separation flat tappet 4barrel quatrajet. Duel plane intake edelbrock 2116 And torque converter 1700-2100 stallHeadman headers. Changing the ignition system to electronic. I'm just looking for a quick review so that I know if I'm crazy or not.Thanks in advance. Cheers
just a quick thought.. probably too much stall. it already has electronic ignition.. depending on where you live or where the car was designed for.. it could have a FEEDBACK quadrajet.. that has 2 wires to the upper right top for the mixture control solenoid .. 3 wires to the front for the Throttle position sensor.. these exact carbs will NOT like the 305 to 350 swap.. http://www.summitracing.com/parts/sum-m08600vs/overview/they make a 750 version also. many people have installed them on 350s and they worked perfect right out of the box. you will as you are planning on towing sometimes to install the largest transmission cooler you can get..which transmission do you have.. 81 probably has a 350C. with lockup torque converter.. you will want to keep that system. so you will need to identify the vacuum switch on the firewall so you can hook a vacuum hose to it.. see what kind of vacuum is on it currently.. for some reason i cannot recall if its ported vacuum where it will have vacuum applied to the switch only above idle. i think that is the way its hooked up.. i don't know if there is a ported vacuum port on the summit carb.