I have both Fenton’s on my 235. A duel exhaust and dual intake. Heated the intake with water. It is the system Tom Langdon sold and recommended for my truck. With the dual Weber progressive two barrel carbs. All I can say it works flawlessly. No hesitation or dead spot. Very strong running engine. The two Weber 32/36 two barrel is not over carbureted for my 235. It is only 28% larger in the primary Venturi’s than the stock one barrel carb. The Fenton duel exhaust sounds great. I have 2” pipes all the way back to the rear bumper. I could not be more pleased with this set up. I have had it up to 70mph easily. I have the stock 4.56:1 rear end but with a Gear Vendor overdrive. That gives me a final ratio of 3.55.