I have in my vast collection of junk.A good 350 target master engine shortblock.I have a pair of 993 casting heads, and a pair of swirl port 193 throttle body heads. Also have an edelbrock performer mani. W/ egr provisions.Carbs I have a vac secondary 600 Holley.An edelbrock performer carb and a rebuilt qjet. Last but not least a pair of long tube headers.Going into a 1985 C10, goal 400 ft lbs torque and somewhere around 300hp with reasonable gas mileage.My thoughts are the qjet, run the egr, the swirl port heads, and a isky 264cam. .480 lift 264 advertised duration 214 duration at.050 108 LSA. Any input would be appreciated.