Last year I was at the Oak Bay collector car festival, mostly old and rare antiques and a sea of SU carbs but they let a few muscle cars in. A guy had a 68 Firebird with twin turbos, CID was somewhere around 500 inches and claimed to have over 1000 HP. Don't know how he kept the heads on it. What a sea of plumbing for that, like welding an Octopus. Looked like nice work, all stainless and beautiful welds. Guy said he'd never had it on the track and only took it to shows. Didn't ask him why.