building a mild Daily driver 318
The hard part in this thread is predicting exactly what a combo will run that you yourself have not run: My first good motor was a 351C.... similar bore and stoke at the SBM.
Built it with:
- 10:1 SCR (CC"d the heads myself)
- 600 cfm carb, vacuum secondaries, Holley R6619
- Hydraulic economy cam with.. get this... 190*/200* duration at .050" but with .445"/.471" lift thanks to the large stock rocker ratio of the Cleveland.. and 114* LSA !
- Torker manifold that everyone would nowadays say was all wrong with the carb and cam
- 1-7/8" 4-1 headers....again all wrong in size for carb and cam
- The good breathing of stock 2 BBL 351C heads
Result was a low-mid 14's car at 3300lbs without me, stock torque converter and low 3 rear gears. Would NOT burn off tires but would hook up and climb up through the range from 1500 to a optimum 6500 rpm 1-2 and 2-3 shift points at 55 and 85 MPH.....and would tow it's own weight with no problems (even in the Appalachians), and get 19 mpg at 65-70 mph with no OD. Could have been faster with some rear gears and TC.....
So here is an engine similar to 318willrun's in track speed (probably more low end torque), but not the same in build and probably not the same torque curve.....I giver credit to the CR AND the cam and carb sizing for towing and economy and low end, and the large breathing components (heads, intake, and headers) for extending the top end. Most people would say it was an all FU'd combo, but it was a great engine that did not lay down anywhere from low to high RPM. If I had 'known better', I probably would not have built it that way! LOL