Have read all over this board the best intake to create the most power. I, like many, am lookin for mileage. Have 92 PU with tired 350 TBI, 16146299 ECM, 7706 Bin, that I have tuned, somewhat, no major changes, mainly BLM cells. Have a 99 350 Vortec that I will drop in when this 1 retires. The 6299 has no highway mode, so, I'm lookin for best intake,and "maybe cam" if needed to get best mileage. I drv 50 mi. 1 way to wk. As with the cam, would it be best to leave well alone? I will retain the OEM TBI. Thanks

 

Not super sure, but I bet a GM stocker intake wins that battle.

Dont have a part #, but this is my guess