I actually broke out some engine modeling software a few minutes ago. I modeled a stock L31 then added the 08-500-8, the 08-409-8 cam as well as the Summit 8800. The Summit 8800 also carries nearly identical specs. The power curves of all 3 you could lay over the top of each other with the only difference being under 2,000 rpm and above 5,000 rpm. At 1,500 rpm the 08-409-8 cam is about 5 ft/lbs stronger than the 08-500-8. At 5,500 rpm the 08-500-8 makes about 5 more hp than the 08-409-8. Then comes along the 8800. When I plugged in the specs off the Summit cam card, the 8800 was down about 10 ft/lbs at 1,500 rpm but up 10 hp at 5,500. I then noticed that the 8800 shows to drop in on a 111 ICL with a 112 LSA. The Comp cams both have 4* advance. Like any engine builder in the same situation, I modeled the effect of using the inexpensive Cloyes single roller 3-way adjustable timing set advancing the cam 4*. The 8800 fell right between the 08-409-8 and the 08-500-8. It splits the difference down low as well as up top and fell right in the middle of the two Comp Cams on the extreme ends. From 2,000-5,000 rpm the computer model does not show more than 1-2 tq or hp difference anywhere between the 3 cams. Given the cost difference and Comp Cams lack of availability, I would go with the Summit 8800 and Cloyes 9-1157.